Kvm Windows Guest High Cpu

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Buy now! If you're using the VNC connection then it may be running there, and the CPU utilization won't be inside the VM - it will be used up by the KVM process. it remains at 100%. Can you report cpu usage after the desktop is shown and all apps are loaded? > One thing I find interesting is the relationship between virtual CPU and > physical core http://3swindows.com/high-cpu/virtualbox-high-cpu-usage-guest-idle.html

Kvm Windows Guest High Cpu

Zoltan Zoltan Frombach at Apr 7, 2013 at 5:41 pm ⇧ Yeah, I would not compile libvirt and qemu-kvm from source either.What about this:http://forum.proxmox.com/threads/5770-Windows-guest-high-context-switch-rate-when-idle?se028c4f45a28ea2c09a3f311b600e7d&p2972#post32972Did you try this? The physical system described above has a > dual-core CPU. I've never seen an idle VM to take CPU resources from the host. Well, that's just silly: > If you disable ACPI, you can't do SMP.

When both machines are completely logged out, the Linux machine uses 1% CPU, the Windows one 45-50%, according to top. And I don't wantto compile both libvirt and qemu-kvm from source since it is theproduction machine.http://forum.proxmox.com/threads/5770-Windows-guest-high-context-switch-rate-when-idlehttp://serverfault.com/questions/146922/why-is-idle-windows-vm-using-so-much-cpuOn 4/7/2013 5:18 PM, Banyan He wrote:Maybe you can print out what it is doing, then The system has the latest updates as of today, June 18, 2010. Windows 10 Virtio Drivers Browse other questions tagged kvm-virtualization cpu-usage or ask your own question.

If I start a VM with 2 virtual CPUs, the physical box uses 100% on each core. Qemu Kvm High Cpu Usage Comment 23 Nenad Opsenica 2010-04-12 06:03:03 EDT Similar problem happens to me with Centos 5.4 and Win XPpro VM on one of the hardware machines. I managed to reproduce it only once after reboot and it grubs CPU for only minute or two while i checking it and than returned to normal CPU usage. his explanation When jumping a car battery, why is it better to connect the red/positive cable first?

Seems it did the trick for my installation at least ;-) #9 bohansen, Nov 27, 2010 feldi New Member Joined: Oct 26, 2010 Messages: 2 Likes Received: 0 I had Subscribing... Mark as duplicate Convert to a question Link a related branch Link to CVE You are not directly subscribed to this bug's notifications. Soren Hansen (soren) on 2009-11-23 Changed in kvm (Ubuntu): status: Invalid → Incomplete Penguinhunter (jbovee-thehybridtech) wrote on 2009-12-19: #19 I believe this is a known issue for Windows XP VM's.

If I start a VM with 1 virtual CPU, the physical box goes to 50% overall utilization which is 100% of a core.

Stop.

The windows guest has virtio / spice enabled.

At start it also has the new message qemu-system-x86_64: pci_add_option_rom: failed to find romfile "efi-e1000.rom" Serge Hallyn (serge-hallyn) on 2013-04-30 Changed in qemu (Ubuntu): status: New → Confirmed Changed in qemu:

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Are there any more logs required or is investigation going on upstream ?

Qemu Kvm High Cpu Usage

Comment 9 Dave Allan 2010-01-08 10:14:41 EST I've reproduced this behavior on up to date F12 x86_64. If the guest gives work to both the vcpus, both the threads will be active. Kvm Windows Guest High Cpu setting it back to sandybridge show the same behaviour. Qemu-kvm 100% Cpu Taskman takes about 1 or 2 % of the guest CPU, but there's no other processes taking up any CPU time.

It is included since the Windows Vista distribution in the %WINDIR%\System32 folder.About KVM -localtime used in this article: Description quoted from the Official Manpage: Set the real time clock to local check over here As time passes on the host the loadvm start to become very slow. with 8.10 host and 8.10-server and 8.10-virtual guest . . . Add tags Tag help reference2myself (reference2myself) wrote on 2008-06-29: #1 This problem seems to be related to xp running with no ACPI, I installed xp again but told virt-manager it was Kvm High Cpu Usage Idle

If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. The following is the latest list of packages on the test system: > uname -a Linux host.name.obscured 2.6.31.12-174.2.22.fc12.x86_64 #1 SMP Fri Feb 19 18:55:03 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux > To reproduce: 1. his comment is here It uses libvirt as the backend : management API.

One thing that will help ease the load is to start shutting down necessary services, such as the indexing service. sudo virsh > edit $vmname to do that. > no difference > How did you verify that the bug exists without the virtio drivers? Stay logged in Log in with Facebook Log in with Twitter Log in with Google Search titles only Posted by Member: Separate names with a comma.

What is a non-vulgar synonym for this swear word meaning "an enormous amount"?

In short, simply starting the VM causes physical CPU utilization to jump to 100%. Boot to booloader menu -> physical CPU usage of qemu-kvm is > 95% 2. Would it be possible for you to test with the latest upstream git? http://3swindows.com/high-cpu/windows-explorer-high-cpu-usage-windows-8.html Report a bug This report contains Public information Edit Everyone can see this information.

sudo apt-get install git git clone git://git.qemu.org/qemu.git cd qemu ./configure x86_64-softmmu make cd x86_64-softmmu sudo mv /usr/bin/qemu-system-x86 /usr/bin/qemu-system-x86.orig sudo cp x86_64-softmmu /usr/bin/ Then re-test your guest. Is that the broken command line? THANKS! Those who try to compare one to the other will always struggle more than those who simply accept that they are different and treat each as a separate entity. –John Gardeniers

I'm not suggesting this can not be a duplicate. you mean a kernel configuration within the guest (aka recompile ?) or a boot parameter within the guest ? Is it bad practice to use GET method as login username/password for administrators? My linux works good, never tried windows.------------Banyan HeBlog: http://www.rootong.comEmail: banyan at rootong.comOn 4/7/2013 10:21 PM, Micky wrote:Windows 2k8 R2 guest with updated virtio drivers is idle inside but onthe host qemu-kvm

MrJacK said: ↑ Check this links : http://support.microsoft.com/default.aspx?scid=kb;EN-US;919521 For me, this solved the problem, CPU usage is now normal. I will attempt to repro on F14 shortly. Get your own in 60 seconds. PascalC (p92) wrote on 2010-11-17: #23 the comment #22 works perfectly with my xp VMs - I also set only one vcpu and acpi+apic enabled on these VMs D.Schäfer (trash4you) wrote

That could explain the 100% cpu usage at boot time. This forum thread claims that you can change the HAL layer with the boot media. Share Tags: KVMkvm high cpuwindows high cpu kvmJulesJules is the owner and author of ISPIRE.ME. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora please change the 'version' of this bug to the

Actually uninstall the drivers and switch the disk/net models back to their defaults, or something else? Comment 16 Dave Allan 2010-02-04 13:23:07 EST Created attachment 388860 [details] screenshot of where the VM is in the boot process when CPU goes to 100% Here's a screenshot to clarify